Friday the 13th: The Series - Season 1 Episode 2 The Poison Pen

The cousins and Jack track an antique quill pen to a monastery famed for its mysterious prophecies. The pen can be used to make anything written with it come true...at the cost of a human life for each ""wish"" granted. However, the identity of the monk using the pen, and the location of the pen, isn't known. The trio must solve the mystery before it's too late.